A mordant or dye fixative is a substance used to set dyes on fabrics or tissue sections by forming a coordination complex with the dye which then attaches to the fabric or tissue. It may be used for dyeing fabrics, or for intensifying stains in cell or tissue preparations. The term mordant comes from the present participle of French mordre, "to bite". In the past, it was thought that a mordant helped the dye bite onto the fiber so that it would hold fast during washing. A mordant is often a polyvalent metal ion. The resulting coordination complex of dye and ion is colloidal and can be either acidic or alkaline.

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dbo:abstract
  • A mordant or dye fixative is a substance used to set dyes on fabrics or tissue sections by forming a coordination complex with the dye which then attaches to the fabric or tissue. It may be used for dyeing fabrics, or for intensifying stains in cell or tissue preparations. The term mordant comes from the present participle of French mordre, "to bite". In the past, it was thought that a mordant helped the dye bite onto the fiber so that it would hold fast during washing. A mordant is often a polyvalent metal ion. The resulting coordination complex of dye and ion is colloidal and can be either acidic or alkaline. (en)
  • El mordiente es una sustancia empleada en tintorería que sirve para fijar los colores en los productos textiles. La función del mordiente es favorecer la fijación del colorante en las fibras. Este término es usado principalmente en la industria textil para designar a aquellas sales metálicas (de aluminio, hierro, plomo ...), ácidos (el ácido tánico, usado para fijar colores básicos), sustancias orgánicas (caseína, gluten, albúmina, ...), etcétera, que sirven para fijar los colores de estampados en los textiles. También existen mordientes que sirven para fijar colorantes en tinciones biológicas de células animales o vegetales. No se debe confundir con el mordente, adorno musical. (es)
  • Il mordente è una sostanza impiegata nell'industria tessile per fissare le sostanze coloranti alle fibre dei prodotti tessili, che forma con il colorante un composto insolubile. I mordenti spesso sono composti da ossidi inorganici o sali che vengono adsorbiti dai tessuti, e che formano dei complessi colorati con le sostanze colorate. Le sostanze mordenti vengono anche utilizzate in biologia per marcare le cellule o i tessuti biologici, in modo da renderli maggiormente visibili al microscopio. Lo iodio viene ad esempio utilizzato nella tecnica di laboratorio chiamata colorazione di Gram, mentre l'acido fosfomolibdico è utilizzato per la preparazione del colorante tricromo di Masson, utilizzato per evidenziare le cellule rispetto al tessuto connettivo circostante. (it)
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  • 288471 (xsd:integer)
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  • 744365606 (xsd:integer)
dbp:date
  • September 2016
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  • no
dbp:talk
  • Talk:Mordant#Mordants in history needed
dct:subject
http://purl.org/linguistics/gold/hypernym
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rdfs:comment
  • A mordant or dye fixative is a substance used to set dyes on fabrics or tissue sections by forming a coordination complex with the dye which then attaches to the fabric or tissue. It may be used for dyeing fabrics, or for intensifying stains in cell or tissue preparations. The term mordant comes from the present participle of French mordre, "to bite". In the past, it was thought that a mordant helped the dye bite onto the fiber so that it would hold fast during washing. A mordant is often a polyvalent metal ion. The resulting coordination complex of dye and ion is colloidal and can be either acidic or alkaline. (en)
  • El mordiente es una sustancia empleada en tintorería que sirve para fijar los colores en los productos textiles. La función del mordiente es favorecer la fijación del colorante en las fibras. Este término es usado principalmente en la industria textil para designar a aquellas sales metálicas (de aluminio, hierro, plomo ...), ácidos (el ácido tánico, usado para fijar colores básicos), sustancias orgánicas (caseína, gluten, albúmina, ...), etcétera, que sirven para fijar los colores de estampados en los textiles. No se debe confundir con el mordente, adorno musical. (es)
  • Il mordente è una sostanza impiegata nell'industria tessile per fissare le sostanze coloranti alle fibre dei prodotti tessili, che forma con il colorante un composto insolubile. I mordenti spesso sono composti da ossidi inorganici o sali che vengono adsorbiti dai tessuti, e che formano dei complessi colorati con le sostanze colorate. Le sostanze mordenti vengono anche utilizzate in biologia per marcare le cellule o i tessuti biologici, in modo da renderli maggiormente visibili al microscopio. (it)
rdfs:label
  • Mordant (en)
  • Mordiente (es)
  • Mordente (chimica) (it)
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